------------[ cut here ]------------ workqueue: cannot queue hci_cmd_timeout on wq hci1 WARNING: CPU: 0 PID: 7696 at kernel/workqueue.c:2256 __queue_work+0xe10/0x1210 kernel/workqueue.c:2254 Modules linked in: CPU: 0 UID: 0 PID: 7696 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/30/2025 pstate: 634000c5 (nZCv daIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : __queue_work+0xe10/0x1210 kernel/workqueue.c:2254 lr : __queue_work+0xe10/0x1210 kernel/workqueue.c:2254 sp : ffff800097b47b20 x29: ffff800097b47b70 x28: dfff800000000000 x27: ffff700012f68f84 x26: 0000000000000008 x25: dfff800000000000 x24: ffff0000d6423800 x23: ffff0000d64239c0 x22: 0000000000000100 x21: 1fffe0001ac84738 x20: ffff800092e27000 x19: ffff0000cfbe8988 x18: 0000000000000000 x17: ffff80010c542000 x16: ffff80008b021028 x15: 0000000000000001 x14: 1ffff000122780f4 x13: 0000000000000000 x12: 0000000000000000 x11: ffff7000122780f5 x10: 0000000000ff0100 x9 : 4d24663278976300 x8 : 4d24663278976300 x7 : ffff800080565b6c x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000000 x3 : ffff8000807e0688 x2 : 0000000000000002 x1 : 0000000000000100 x0 : 0000000000000000 Call trace: __queue_work+0xe10/0x1210 kernel/workqueue.c:2254 (P) delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2485 call_timer_fn+0x1b4/0x818 kernel/time/timer.c:1747 expire_timers kernel/time/timer.c:1793 [inline] __run_timers kernel/time/timer.c:2372 [inline] __run_timer_base+0x54c/0x76c kernel/time/timer.c:2384 run_timer_base kernel/time/timer.c:2393 [inline] run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2403 handle_softirqs+0x328/0xc88 kernel/softirq.c:579 __do_softirq+0x14/0x20 kernel/softirq.c:613 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:68 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:891 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:73 invoke_softirq kernel/softirq.c:460 [inline] __irq_exit_rcu+0x1b0/0x478 kernel/softirq.c:680 irq_exit_rcu+0x14/0x84 kernel/softirq.c:696 __el1_irq arch/arm64/kernel/entry-common.c:520 [inline] el1_interrupt+0x40/0x60 arch/arm64/kernel/entry-common.c:532 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:537 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:592 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P) arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P) lock_release+0x270/0x39c kernel/locking/lockdep.c:5892 (P) vma_refcount_put include/linux/mmap_lock.h:142 [inline] vma_end_read+0x54/0x140 include/linux/mmap_lock.h:267 do_page_fault+0x488/0x13cc arch/arm64/mm/fault.c:655 do_translation_fault+0xc4/0x114 arch/arm64/mm/fault.c:789 do_mem_abort+0x70/0x194 arch/arm64/mm/fault.c:929 el0_ia+0xb4/0x2e8 arch/arm64/kernel/entry-common.c:580 el0t_64_sync_handler+0xfc/0x12c arch/arm64/kernel/entry-common.c:769 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 261 hardirqs last enabled at (260): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (260): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (261): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (261): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (24): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (241): [] __do_softirq+0x14/0x20 kernel/softirq.c:613 ---[ end trace 0000000000000000 ]---